Select a.sid,
       serial#,
       a.osuser,
       a.machine,
       c.SQL_FULLTEXT,
       a.terminal,
       b.SEGTYPE,
       a.program,
       a.USERNAME,
       a.status,
       round((b.blocks * 8192) / 1024 / 1024, 2) "Tam TEMP",       
       c.last_load_time
  from v$sort_usage b, v$session a, V$SQLAREA c
 where a.saddr = b.SESSION_ADDR
   and c.hash_value = b.SQLHASH
 order by c.last_load_time